1. The price in column 4 is a weighted average price. The units were sold in multiple transactions at prices ranging from $86.50 to $86.69. Reporting Person undertakes to provide to the SEC staff, the Issuer or any unitholder of the Issuer, upon request, full information regarding the number of units sold at each separate price.

Remarks:

Al Swanson

08/15/2012

** Signature of Reporting Person

Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person,
see
Instruction
4
(b)(v).